Alphabet "O" | Dictionary Words - Class 6 PDF Download

100 Words Starting with "O"

1. oasis: a shelter serving as a place of safety or sanctuary
   In August, editor-at-large Leigh Buchanan and I traveled to the foundation's headquarters, an oasis of greenery and glass in sweltering Kansas City, Missouri.
2. obdurate: showing unfeeling resistance to tender feelings
   Mr. Oldstone, in particular, exhausted all his powers of persuasion to yet delay his departure, but he found him obdurate.
3. obedient: dutifully complying with the commands of those in authority
   “‘With all due respect, I have the honor to be, Sir, “‘Your most obedient and humble servant.’
4. obeisance: bending the head or body in reverence or submission
   All heads were inclined in an obeisance of deep homage.
5. obfuscate: make obscure or unclear
   Yet as we tried to understand, there always seemed to be an obfuscating layer: something or someone was working against comprehension.
6. objective: the goal intended to be attained
   "Our main objective is to maintain a balance between market share and profitability," Chief Executive Officer Marco Antonio Bologna said in the earnings statement.
7. obligation: the state of being bound to do or pay something
   I considered myself as a married man and under obligation to alter my way of living, and I stopped playing.
8. oblique: not direct, explicit, or straightforward
   An old man, of monstrous obesity, seated on a wooden chair, devoured his pittance with animal voracity, casting on either side oblique angry glances.
9. oblivious: lacking conscious awareness of
   They were lying down and apparently oblivious to my approach—perhaps asleep.
10. obloquy: state of disgrace resulting from public abuse
    Thus public men are content to leave their reputation to posterity; great reactions take place in opinion; nay, sometimes men outlive opposition and obloquy.
11. obscure: not clearly understood or expressed
    Nor has any obscure, mysterious, or illusive point in history been cleared up by the spirits.
12. obsequious: attentive in an ingratiating or servile manner
    The man had been eager in his attentions, deferential, almost obsequious.
13. obsolete: no longer in use
    Over the past dozen or so years, hospitals across the country have gone digital, leading to better patient outcomes and making hangar-size file-storage facilities obsolete.
14. obstinate: marked by tenacious unwillingness to yield
    No opposition was so great, no difficulty so stubborn and obstinate, which he did not conquer by his beloved Son, the author of our salvation.
15. obstreperous: noisily and stubbornly defiant
    If particularly wild, obstinate, or obstreperous, he still keeps breaking away, and refusing to come into camp.
16. obstruct: block passage through
    Through Icy Sound we found some difficulty in penetrating, as the channel was much obstructed by ice.
17. obtain: come into possession of
    Nine years later, Napoleon managed, by skilful intrigues, to obtain quiet possession of Malta.
18. obtrusive: undesirably noticeable
    “We’ve done research, and the ads are considered annoying, irritating and obtrusive,” Mr. Norris said after watching Barnes & Noble’s presentation.
19. obtuse: slow to learn or understand; lacking intellectual acuity
    The affair had been mentioned so plainly that it was impossible for the most dense and obtuse person not to have understood the allusion.
20. obviate: prevent the occurrence of; prevent from happening
    Fevers are at present alarmingly prevalent, arising from causes which judicious attention and sanitary means would easily obviate.
21. occlude: block passage through
    In many cases we can dissolve the clot that is occluding the artery or blood vessel in the brain and restore normal flow.
22. occult: supernatural practices and techniques
    He studied magic, and his thirst for knowledge of the occult sciences grew.
23. occupy: live in (a certain place)
    Another reason sales have fallen is that previously occupied homes have become a better deal than new homes.
24. odious: extremely repulsive or unpleasant
    Hideous and odious, revolting beyond all expression, the underground war finished by becoming impossible.
25. odium: hate coupled with disgust
    Week after week, the seceders were held up to public odium, derision and scorn.
26. odoriferous: having a natural fragrance
    Some odoriferous substances are fragrant for many years, exhaling continually, yet are not quickly consumed.
27. odyssey: a long wandering and eventful journey
    He hit six rodeos in seven days, an odyssey that took him to stops in Texas, Arkansas, New Mexico and California.
28. offend: cause to feel resentment or indignation
    The research said milder expressions should be used to "avoid offending the public and stoking social tensions".
29. officious: intrusive in a meddling or offensive manner
    Be kind, of course; that’s only your duty, but I call it officious and presumptuous to interfere in other people’s lives.
30. offset: compensate for or counterbalance
    The chain has been raising prices on some drinks to help offset higher costs for commodities like coffee and milk.
31. ogle: stare or look at, especially with amorous intentions
    “This simple food keeps you in beautiful health, Father,” said Mistletoe, ogling the swarthy face of the Abbot with an affection that he duly noted.
32. olfactory: of or relating to the sense of smell
    The human brain’s olfactory bulb is activated differently depending on where a smell hits the nostril, indicating that odor receptor organization is not uniform.
33. oligarchy: a political system governed by a few people
    The track management of this particular university was an oligarchy; was governed by a few absolute individuals.
34. omen: a sign of a thing about to happen
    Pale-faced, wide-eyed, statuesque, their presence, interpreted by a vivid imagination, might have been regarded as an omen of impending misfortune.
35. ominous: threatening or foreshadowing evil or tragic developments
    He knew there was something ominous in her silence, like gathering thunder.
36. omit: leave undone or leave out
    Titles are abbreviated, mottoes dropped, foot notes cut out, and many earlier poems reduced, or omitted entirely.
37. omnipotent: having unlimited power
    We can still call Him Omnipotent in the sense that He possesses all the power there is.
38. omnipresent: existing everywhere at once
    He is here, there, and everywhere; he is omnipresent—this curse of Finland.
39. omniscient: knowing, seeing, or understanding everything
    The Omniscient Being alone can have perfect knowledge of all beings and things as they are.
40. omnivorous: feeding on both plants and animals
    Rats and mice are practically omnivorous, feeding upon all kinds of animal and vegetable matter.
41. onerous: burdensome or difficult to endure
    The charge was an onerous one, requiring constant and severe labor, as well as the exercise of patience, prudence, and good judgment.
42. onomatopoeia: using words that imitate the sound they denote
    This correspondence of sound and sense is called onomatopoeia.
43. onslaught: a rapid and continuous outpouring
    Most companies are facing an onslaught of information about customers from social networks, the Internet, and mobile devices.
44. onus: a burdensome or difficult concern
    With Xavi out injured, the onus was on Alonso to supply his forward line and he excelled at the task.
45. opalescent: having a play of lustrous rainbow colors
    It is a picture beautiful as the opalescent colors of a soap bubble.
46. opaque: not transmitting or reflecting light or radiant energy
    Comets differ from the bodies which we have just been describing in that they appear filmy and transparent, whereas the others are solid and opaque.
47. operative: a person secretly employed in espionage for a government
    I am a Secret Service operative seeking information about Cheney.
48. opiate: a narcotic drug
    Signs of opiate drug use include pinpoint pupils, too much sleep, too little motivation, unexplained absences and worsening grades, counselors say.
49. opponent: someone who offers resistance
    Sarkozy has been criticized by opponents and even some allies for his sometimes brutal manner of pushing through decisions.
50. opportune: suitable or advantageous especially for a particular purpose
    Most viewed the budget surplus as opportune: a chance to pay down the national debt, cut taxes, shore up entitlements or pursue new spending programs.
51. opportunist: a person who places expediency above principle
    A Rangoon resident told the BBC that some of these groups were seen as opportunists playing along with the junta for personal gain.
52. opposition: a body of people united against something
    Medical Missions in Persia have already worked wonders, breaking down opposition, winning friends even amongst the most fanatical.
53. oppressive: marked by unjust severity or arbitrary behavior
    The consequences flowing from this unjust and oppressive system of taxation are appalling.
54. opprobrium: state of disgrace resulting from public abuse
    They know how easily the taunting of Mr Brown over bullying allegations and ill-scripted condolence letters engendered public sympathy rather than opprobrium.
55. optimist: a person disposed to take a favorable view of things
    Ms. McCarthy remains hopeful about the future of public education: “I’m forever an optimist.
56. optional: possible but not necessary; left to personal choice
    All other laws, it is optional with each man to obey, or not, as he may choose.
57. opulent: rich and superior in quality
    The count was rich in land, but his income could not be compared with that of the opulent Garnet.
58. opus: a musical work that has been created
    Barnes will perform his opus, "Acknowledgment of a Celebration," which he debuted at last fall's Earshot Jazz Festival.
59. oracle: an authoritative person who divines the future
    Dionysus further possessed the prophetic gift, and his oracle at Delphi was as important as that of Apollo.
60. oracular: of or relating to prophecy or someone who tells the future
    Nor does his philosophic attitude exclude the possibility of a certain faith in oracular foresight and divination.
61. orator: a person who delivers a speech
    As an orator Senator Evarts stood in the foremost rank, and some of his best speeches were published.
62. ordinance: an authoritative rule
    Police say officers began patrolling parks near the stadium Monday night to make sure no park ordinances are violated, especially those related to alcohol.
63. ordinary: lacking special distinction, rank, or status
    While the government and the developers are doing well, many ordinary people are hurt by the high cost of living.
64. ordination: the status of being sworn into a sacred office
    Some forty English students are educated for the priesthood and return on their ordination for work in their native land.
65. organic: grown or raised without synthetic fertilizers or pesticides
    And because she has an organic farm, she does not use spray pesticides, experimenting with spraying soapy water.
66. orientation: a course introducing a new situation or environment
    To reduce the number of dropouts, it is offering students a three-week “orientation” during which they can quit without charge.
67. orifice: an opening, especially one that opens into a bodily cavity
    The mouth, a round, lipless orifice, contracted or dilated at will; from it came whistling words.
68. origin: the source of something's existence or from which it derives
    British, but especially English, place names are, in a vast majority of cases, either of Saxon, Norse, or Celtic origin.
69. originate: come into existence; take on form or shape
    Some plants, such as the sweet potato, originated in the Andes Mountains but apparently spread across the Pacific Ocean before the arrival of Columbus.
70. ornate: marked by elaborate rhetoric and elaborated with details
    Unlike his literary icon, Herman Melville, he doesn’t adorn his writing with ornate flourishes or complicated scaffolding.
71. ornithologist: a scientist who studies birds
    Besides the structural resemblances, which are, of course, the only ones considered by ornithologists in classifying birds, the indigo buntings have several sparrow-like traits.
72. orotund: full and rich, of sounds
    The answer came back in a deep, orotund, sing-song voice.
73. orthodox: adhering to what is commonly accepted
    His opinions, clashing as they did with orthodox creeds, were given in a tentative, questioning fashion, so that where ecclesiastical censure fell, retreat was easier.
74. orthogonal: meeting at right angles
    His love of the orthogonal, which like 1980s dance moves once verged on the robotic, is relaxing into less pure angles.
75. oscillate: move or swing from side to side regularly
    When the polariton flow was excited with two laser beams, the quantum fluid began to oscillate backwards and forwards in ways predicted by quantum mechanics.
76. osseous: composed of or containing bone
    But the osseous outgrowth, the bones, you know, complicate things.
77. ossify: make rigid and set into a conventional pattern
    Looking at it out of the corner of my eye, I could think about being a teenager, before roles were ossified and boundaries set.
78. ostensible: appearing as such but not necessarily so
    This already-exhaustive book is studded with diary entries, academic papers and other ostensible evidence that its fictitious stories of destruction are true.
79. ostentatious: tawdry or vulgar
    He was frugal and dressed in plain, ordinary clothes rather than extravagant or ostentatious ones.
80. ostracize: expel from a community or group
    Although she may have been more sinned against than sinning, she is cast out and ostracized by society.
81. otiose: serving no useful purpose; having no excuse for being
    There is no superfluous ornament in his orations, nothing tawdry, nothing otiose.
82. oust: remove from a position or office
    Maldives' torture- addicted previous president was ousted and a more democratic government was established.
83. outcome: something that results
    "Very frustrating process, but a great outcome in the end," Moore told The Idaho Statesman.
84. outlandish: noticeably or extremely unconventional or unusual
    His outsized personality and outlandish comments - maybe not so absurd given what Ryan's New York Jets have achieved - draw notice no matter the situation.
85. outrage: strike with disgust or revulsion
    Every single time reporters, analysts, and citizens are astonished, outraged, shocked anew that the politician didn’t just go ahead and admit what he did.
86. outrageous: grossly offensive to decency or morality; causing horror
    “The suffering and bloodshed is outrageous and it is unacceptable,” Mr. Obama said at the White House, after meeting with Mrs. Clinton.
87. outskirts: area relatively far from the center, as of a city or town
    Security forces were checking cars inside the city and in its outskirts.
88. outspoken: given to expressing yourself freely or insistently
    Even my lady, so blunt and outspoken by nature, had shrunk from trying to question the Dutch girl about her lover.
89. outwit: beat through cleverness
    To top it all off, he regularly outwits his elders, showing natural positional sense and finishing moves with the poise and intelligence of an expert.
90. ovation: enthusiastic recognition
    Buster Poster, receiving rousing ovations from fans every time his name was announced, cleared another milestone with an RBI single in the first.
91. overbearing: having or showing arrogant superiority to
    He who had been so unprincipled and arrogant, so insolent and overbearing, his cleverness no longer needed, was tossed aside by his employers.
92. overcome: win a victory over
    Abbott said he learned a lot by winning, by overcoming the odds.
93. oversight: management by watching and directing a person or group
    The former Pennsylvania senator defended the practice by saying that Congress has an important oversight role in shaping the federal budget.
94. overt: open and observable; not secret or hidden
    In this music, the Caribbean element often isn’t overt but is coded in the relationship between rhythm and melody.
95. overthrow: cause the downfall of
    Just two weeks ago, Mali’s 1991 revolution was reversed when mutinous soldiers overthrew a democratically elected government.
96. overweening: presumptuously arrogant
    There were crack riders and ropers who, just because they felt such overweening pride in their own prowess, were not really very valuable men.
97. overwhelming: very intense
    I think I was not so much afraid as oppressed by an almost overwhelming sense of loneliness.
98. overwrought: deeply agitated especially from emotion
    Belshazzar, pale-faced and utterly overwrought, physically exhausted, mentally apprehensive, followed his father, walking alone.
99. overzealous: marked by excessive enthusiasm for a cause or idea
    He sat scared in Greece on his team’s bus as it was attacked by overzealous fans.
100. oxymoron: conjoined contradictory terms
     As oxymorons go, the silent disco is right up there, along with vegan bacon, jumbo shrimps and the living dead.